The principle of opening and closing means opening to expansion and closing to modification. When the program needs to be expanded, the original code cannot be modified, but the original code should be expanded to achieve a hot plug effect. Therefore, a summary of one sentence is: in order to make the program scalable, easy to maintain and upgrade. To achieve this effect, we need to use interfaces and abstract classes, etc. We will mention this point in the later specific design.
每一个人都有不同的看法。
魏铁不敢怠慢，急忙转身去了。
失恋疗养院是一家专门负责帮助恋爱中受伤的人走出低谷，开始新生活的工作室。李小明是疗养院负责人，王子宁介绍闺蜜安冉与李小明认识时，安冉刚和相恋七年的男友朱永在领证前夕分手。安冉失恋，工作和生活陷入低谷。在李小明的帮助下，安冉入住失恋疗养院，开始寻找新生之路。在疗养院里，安冉结识了大虾，丁丁，香肠弟等一群困于情感伤害的善良之人。不断相处中，他们相互安慰，彼此鼓励，重拾对爱情的信心，重建积极健康的爱情观，慢慢找回自我价值，开始新的生活。
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故事讲述了夏晚晴在遭遇好友算计、男友悔婚并落入连环圈套毫无退路的窘境下，被“花花公子”乔津帆解脱困境，然而这一切不过是更加复杂庞大的圈套的初始，夏晚晴的真实身世逐渐浮出水面，而“花花公子”也不过是乔津帆的一张面具，一段最初因为“复仇 ”而开始的爱情最终令两个人绝处逢生。
被坏孩子们欺负并称为窝囊废俱乐部的比利、麦克、史坦、贝芙、艾迪、本和瑞奇组成了幸运七人组。比利（Jonathan Brandis 饰）的弟弟乔治雨天玩耍时撞见小丑，失去了性命。他们从麦克（Marlon Taylor 饰）的家族相册中得知小丑的存在，而小丑也开始威胁孩子们的生命。七人组的孩子为了给乔治报仇，并保护镇上的孩子们，他们决心消灭小丑。经过一番激战，小丑带伤逃遁，三十年后，这个邪恶的魔鬼重返德瑞小镇……
In the achievement of this famous Wulin hostel, the award has the word title at the end. Where is it displayed? Is there any bonus?
《门第》讲述了一段错综复杂的婚姻生活。市井小民何春生与都市白领罗小贝，两个携带不同家庭文化的人组成婚姻，也就开始了一场以相互渗透家庭文化为背景的战争。爱情，在“门第”之下就像一个带着善意的谎言，然而只有在婚姻的博弈中互相体谅，互相关怀，携手走出“门第”差异，才能收获最终的幸福！
那时我还没有创出《太极功》，哪里能说得上武功盖世，只是火工头陀并没有把《九阳神功》修炼到大成。
如果他不是张家儿子，这门亲事还算数吗？会算数的，但赵翩翩不会嫁给他，而是嫁给那个陈离。
In addition, As Zhang Xiaobo said, On the front line at that time, Wearing or not wearing a helmet is a "choice", Because Vietnam is located in Southeast Asia, The climate is hot and humid, Helmets are heavy and airtight, Wearing it is very easy to cause heatstroke, Particularly in fast maneuvers, This is the easiest way to do strenuous activities such as running. Therefore, in order for the troops to fight more efficiently, There would be no mandatory order for everyone to wear a helmet, If you don't want to wear it, you can choose to wear a cloth cap with eaves. So in the vast majority of relevant historical photos, Among our troops participating in the war, The highest percentage of helmets is worn by artillery, It is mainly used to defend the fragments of enemy artillery and various hard objects brought up by explosions in artillery warfare. Even some border militiamen wore helmets in large numbers, On the contrary, the impact is at the forefront, Infantry units carrying out a large number of mobile combat missions are rarely worn, Investigate its reason, It is for the infantry troops to carry out large-scale interspersed operations frequently. Exercise is enormous, It is really inconvenient to wear helmets, This approach has both advantages and disadvantages, It is not good to judge right or wrong here, but when facing such a horrible "killer bee" on the ground on 149, it is regrettable and regrettable that the heavy casualties caused by the low wearing rate of helmets have to be said. If they had worn helmets instead of military caps like Zhang Xiaobo, the casualties caused by the sting attack of "killer bee" would have been much smaller.
老苦瓜性格古怪孤癖，脾气暴躁，没有人愿意和他为伍，接近他。没有人知道他的真实姓名和过去。初时，老苦瓜尽办法摆脱这个“傻子”，却每每失败。
Freeform预订Bert V. Royal执笔﹑Max Winkler执导的惊悚剧试映集《残酷夏天 Cruel Summer》，这部非常规剧项目讲述93-95年得州小镇里的两个女主角，第一个是Kate，在剧中被绑架，另一是Jeanette，甜美﹑不擅社交的她成为了镇上 最受欢迎的人，但于95年时成为全美最被鄙视的人。剧集每集都以这两女主的视角描述剧情，然后慢慢披露事情的真相。
该剧讲述了而立之年的职业女性沈明宝和闺蜜薛可欣各自闪婚，经历一系列婚姻生活摩擦后，各自走上截然不同的情感之路，重新找回幸福的故事。
《万能管家》 （ Jeeves and Wooster ）是 Hugh Laurie 大叔和 Stephen Fry大叔在二十世纪九十年代的作品。
大明，真的是太好蹂躏了。
(two) the medical service behavior is real, but the declared items and amounts are not consistent with the real service behavior, and the difference is not big;
